mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2026-09-08 07:49:04 +00:00
Oleg Belousov
b048b8f4f1
* Add sliding-frequency audio receiver tuning * Move ADS-B receiver to external app * Move AIS receiver to external app * Move APRS receiver to external app * Move APRS transmitter to external app * Isolate filtered spectrum collection from WFM * Fixed the issues #3280 * fpga_bridge.c: init registers per reference fpga_init, add quarter-shift mode setter * radio.hpp: expose cached FPGA quarter-rate shift * radio.cpp: program FPGA quarter-rate shift together with tuning offset * tuning.hpp: pass AFE rate and direction to tuning config, add quarter_shift field * tuning.cpp: import full PRALINE RX/TX tuning tables with quarter-shift offsets * clock_manager: stop writing bogus RX digital gain, keep quarter shift across rate changes * receiver_model: port LPF bandwidth from reference auto_bandwidth, use cached quarter shift * adsb_rx: enable RF amp by default on first run * ui_geomap.hpp: add hemisphere fields, degrees become magnitude * ui_geomap: use hemisphere selector for lat/lon sign, fix minute/second wrap carry * ui_menu: guard select against empty menu * waterfall_designer: header updates for profile file handling * waterfall_designer: exception-free profile parsing, CRLF handling, deferred nav callbacks, backup cleanup * external.ld: scope app section globs to their own object directories * CMakeLists: relink when external.ld changes * tools: add external app symbol placement checker * tools: add guru meditation address lookup script * tools: add per-function stack usage report script Co-authored-by: gullradriel <gullradriel@users.noreply.github.com>
126 lines
4.0 KiB
C++
126 lines
4.0 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2016 Furrtek
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __PROC_NFM_AUDIO_H__
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#define __PROC_NFM_AUDIO_H__
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#include "baseband_processor.hpp"
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#include "baseband_thread.hpp"
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#include "rssi_thread.hpp"
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#include "dsp_decimate.hpp"
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#include "dsp_demodulate.hpp"
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#include "dsp_frequency_xlator.hpp"
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#include "dsp_iir.hpp"
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#include "audio_output.hpp"
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#include "filtered_spectrum_collector.hpp"
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#include <cstdint>
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#define Z_MIN_FILTER_COUNT 224
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#define Z_MIN_ZERO_CROSSINGS 20
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class NarrowbandFMAudio : public BasebandProcessor {
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public:
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#ifdef PRALINE
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NarrowbandFMAudio(); // Phase 2: Explicit constructor for manual thread start
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#endif
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void execute(const buffer_c8_t& buffer) override;
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void on_message(const Message* const message) override;
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private:
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static constexpr size_t baseband_fs = 3072000;
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static constexpr auto spectrum_rate_hz = 30.0f;
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std::array<complex16_t, 512> dst{};
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const buffer_c16_t dst_buffer{
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dst.data(),
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dst.size()};
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const buffer_s16_t work_audio_buffer{
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(int16_t*)dst.data(),
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sizeof(dst) / sizeof(int16_t)};
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std::array<int16_t, 16> audio{};
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const buffer_s16_t audio_buffer{
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(int16_t*)audio.data(),
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sizeof(audio) / sizeof(int16_t)};
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std::array<int16_t, 16> tone{};
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const buffer_s16_t tone_buffer{
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(int16_t*)tone.data(),
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sizeof(tone) / sizeof(int16_t)};
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dsp::decimate::FIRC8xR16x24FS4Decim4 decim_0{};
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dsp::decimate::FIRC16xR16x16Decim2 audio_decim_0{};
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dsp::FrequencyTranslatingDecimator32By8 translating_decim_1{};
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dsp::decimate::FIRAndDecimateComplex channel_filter{};
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int32_t channel_filter_low_f = 0;
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int32_t channel_filter_high_f = 0;
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int32_t channel_filter_transition = 0;
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// For CTCSS decoding
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dsp::decimate::FIR64AndDecimateBy2Real ctcss_filter{};
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IIRBiquadFilter hpf{};
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dsp::demodulate::FM demod{};
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AudioOutput audio_output{};
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FilteredSpectrumCollector channel_spectrum{};
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size_t spectrum_interval_samples{0};
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size_t spectrum_samples{0};
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bool spectrum_capture_active{false};
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uint32_t tone_phase{0};
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uint32_t tone_delta{0};
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bool pitch_rssi_enabled{false};
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float cur_sample{}, prev_sample{};
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uint32_t z_acc{0}, z_timer{0}, z_count{0}, z_filter_count{0};
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bool ctcss_detect_enabled{true};
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static constexpr float k = 32768.0f;
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static constexpr float ki = 1.0f / k;
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bool configured{false};
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// RequestSignalMessage sig_message { RequestSignalMessage::Signal::Squelched };
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CodedSquelchMessage ctcss_message{0};
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/* NB: Threads should be the last members in the class definition. */
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#ifdef PRALINE
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BasebandThread baseband_thread{baseband_fs, this, baseband::Direction::Receive,
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/*auto_start*/ false}; // Phase 2: Manual start
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RSSIThread rssi_thread{/*auto_start*/ false}; // Phase 2: Manual start
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#else
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BasebandThread baseband_thread{baseband_fs, this, baseband::Direction::Receive};
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RSSIThread rssi_thread{};
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#endif
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void pitch_rssi_config(const PitchRSSIConfigureMessage& message);
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void configure(const NBFMConfigureMessage& message);
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void capture_config(const CaptureConfigMessage& message);
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void ddc_config(const AudioDDCConfigMessage& message);
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};
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#endif /*__PROC_NFM_AUDIO_H__*/
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